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/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
@SuppressWarnings("rawtypes")
public class ClassLoadingAwareObjectInputStream extends ObjectInputStream {
private static final ClassLoader FALLBACK_CLASS_LOADER =
ClassLoadingAwareObjectInputStream.class.getClassLoader();
public static final String[] serializablePackages;
static {
serializablePackages = System.getProperty("org.apache.activemq.SERIALIZABLE_PACKAGES", "java.lang,java.util,org.apache.activemq,org.fusesource.hawtbuf,com.thoughtworks.xstream.mapper").split(",");
}
/**
* Maps primitive type names to corresponding class objects.
*/
private static final HashMap<String, Class> primClasses = new HashMap<String, Class>(8, 1.0F);
public ClassLoadingAwareObjectInputStream(InputStream in) throws IOException {
super(in);
}
protected Class<?> resolveClass(ObjectStreamClass classDesc) throws IOException, ClassNotFoundException {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
Class clazz = load(classDesc.getName(), cl);
checkSecurity(clazz);
return clazz;
}
protected Class<?> resolveProxyClass(String[] interfaces) throws IOException, ClassNotFoundException {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
Class[] cinterfaces = new Class[interfaces.length];
for (int i = 0; i < interfaces.length; i++) {
cinterfaces[i] = load(interfaces[i], cl);
}
Class clazz = null;
try {
clazz = Proxy.getProxyClass(cl, cinterfaces);
} catch (IllegalArgumentException e) {
try {
clazz = Proxy.getProxyClass(FALLBACK_CLASS_LOADER, cinterfaces);
} catch (IllegalArgumentException e1) {
}
}
if (clazz != null) {
checkSecurity(clazz);
return clazz;
} else {
throw new ClassNotFoundException(null);
}
}
public static boolean isAllAllowed() {
return serializablePackages.length == 1 && serializablePackages[0].equals("*");
}
private void checkSecurity(Class clazz) throws ClassNotFoundException {
if (!clazz.isPrimitive()) {
if (clazz.getPackage() != null && !isAllAllowed()) {
boolean found = false;
for (String packageName : serializablePackages) {
if (clazz.getPackage().getName().equals(packageName) || clazz.getPackage().getName().startsWith(packageName + ".")) {
found = true;
break;
}
}
if (!found) {
throw new ClassNotFoundException("Forbidden " + clazz + "! This class is not allowed to be serialized. Add package with 'org.apache.activemq.SERIALIZABLE_PACKAGES' system property.");
}
}
}
}
private Class<?> load(String className, ClassLoader cl) throws ClassNotFoundException {
try {
return Class.forName(className, false, cl);
} catch (ClassNotFoundException e) {
final Class<?> clazz = (Class<?>) primClasses.get(className);
if (clazz != null) {
return clazz;
} else {
return Class.forName(className, false, FALLBACK_CLASS_LOADER);
}
}
}
static {
primClasses.put("boolean", boolean.class);
primClasses.put("byte", byte.class);
primClasses.put("char", char.class);
primClasses.put("short", short.class);
primClasses.put("int", int.class);
primClasses.put("long", long.class);
primClasses.put("float", float.class);
primClasses.put("double", double.class);
primClasses.put("void", void.class);
}
}
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